Tootfinder

Brookfield says it plans to invest ~$10B to build an AI data center in the Swedish city of Strangnas, after committing to spend €20B in France earlier in 2025 (Supantha Mukherjee/Reuters)
https://www.reuters.com/technology/brookfi

Distance to the Galactic centre 7$^\prime$ halo from HI absorption
Debangan Maji, Subhashis Roy
https://arxiv.org/abs/2506.02799 https://

Distance to the Galactic centre 7$^\prime$ halo from HI absorption
Using archival data, we have made an HI absorption study of the 7$^\prime$ halo surrounding the Sgr A complex, observed towards the Galactic centre (GC) region. We find strong HI absorption near velocities of $-$53 km s$^{-1}$, which is due to the 3-kpc arm, placing it beyond 5 kpc from us. We further examined the HI absorption properties towards 5 different parts of the 7$^\prime$ halo. Absorption by +50 km s$^{-1}$ GC cloud is seen towards only 3 parts of the halo, but not towards the other 2…

How AI has transformed data center design, with concerns about overspending on AI infrastructure, sparked by DeepSeek, fading amid the ongoing building frenzy (Financial Times)
https://ig.ft.com/ai-data-centres/

Inside the relentless race for AI capacity
The quest for superintelligence is spurring a data centre boom — but critics question the cost, environmental impact and whether it is all needed

@…
"𠉧… subscribe to Microsoft 365. This, in turn, means their data and meta-information will be kept in a US-based datacenter. …"
I'm as sure as I can be that my (organisational) data is _not_ kept in a US-based data centre.
@…

"London university powers campus using waste heat from data centre"
#UK #UnitedKingdom #London #Education

Conservative data-driven finite element formulation
Adriana Kulikov\'a (Glasgow Computational Engineering Centre), Andrei G. Shvarts (Glasgow Computational Engineering Centre), {\L}ukasz Kaczmarczyk (Glasgow Computational Engineering Centre), Chris J. Pearce (Glasgow Computational Engineering Centre)
https://arxiv.org/abs/25…

Conservative data-driven finite element formulation
This paper presents a new data-driven finite element framework derived with mixed finite element formulation. The standard approach to diffusion problems requires the solution of the mathematical equations that describe both the conservation law and the constitutive relations, where the latter is traditionally obtained after fitting experimental data to simplified material models. To exploit all available information and avoid bias in the material model, we follow a data-driven approach. While …

Calgary-based GeologicAI, which uses AI and sensors to help capture data in rock and core samples faster, raised a $44M Series B led by Blue Earth Capital (Alex Riehl/BetaKit)
https://betakit.com/geologicai-cashes-in-on-data-centre-boom-with-60-5-…

GeologicAI cashes in on data centre boom with $60.5-million CAD Series B
Mining tech startup will use funding to scale globally as demand for critical minerals intensifies.

Rows of camp beds covering the floor, in the husk of a data centre built too late for the ‘20s AI-rush.

Somehow, I missed this, but the British Medical Association objected to the NHS giving Palantir a £330m deal to create a unified platform for all data.
Founder Peter Thiel said the British public’s affection for the NHS is a case of “Stockholm syndrome.”
https://w…

A 3D model simulation of hydrogen chloride photochemistry on Mars: Comparison with satellite data
Benjamin Benne (The University of Edinburgh, School of GeoSciences, UK, Centre for Exoplanet Science, University of Edinburgh, UK), Paul I. Palmer (The University of Edinburgh, School of GeoSciences, UK, Centre for Exoplanet Science, University of Edinburgh, UK), Benjamin M. Taysum (DLR, Germany), Kevin S. Olsen (Department of Physics, University of Oxford, UK, School of Physical Sciences,…

A 3D model simulation of hydrogen chloride photochemistry on Mars: Comparison with satellite data
HCl was detected in the Martian atmosphere by the NOMAD and ACS spectrometers aboard the ExoMars TGO. Photochemical models show that using gas-phase chemistry alone is insufficient to reproduce these data. Recent work has developed a heterogeneous chemical network within a 1D photochemistry model, guided by the seasonal variability in HCl. The aim of this work is to show that incorporating heterogeneous chlorine chemistry into a global 3D model of Martian photochemistry with conventional gas-ph…

Doesn't seem controversial. 'Palantir (inclusive of any associated companies) is an unacceptable choice of partner to create a Federated Data Platform for the NHS. It recognises that this partnership threatens to undermine public trust in NHS data systems'

ARM 2025: BMA passes resolution on Health Information Management and Information Technology - BMA media centre - BMA
BMA statement. 

TasVisAn and InsPy -- Python Packages for Triple-Axis Spectrometer Data Visualization, Analysis, Instrument Resolution Calculation, and Convolution
Guochu Deng
https://arxiv.org/abs/2506.18216

TasVisAn and InsPy -- Python Packages for Triple-Axis Spectrometer Data Visualization, Analysis, Instrument Resolution Calculation, and Convolution
Experimental data collected from a triple-axis spectrometer (TAS) are typically analysed by considering the instrument resolution, as the resolution of a TAS instrument is often complex and significantly influences the measured results. Two Python packages, TasVisAn and InsPy, have been developed to visualize and analyse data from TAS instruments - particularly from the cold-neutron TAS Sika and the thermal-neutron TAS Taipan at the Australian Centre for Neutron Scattering. TasVisAn offers a ra…

Updated measurement of $CP$ violation and polarisation in $B^0_s \rightarrow J/\psi \overline{K}{}^{*}\kern-1pt(892)^{0}$ decays
LHCb collaboration, et al.
https://arxiv.org/abs/2506.22090

Updated measurement of $CP$ violation and polarisation in $B^0_s \rightarrow J/ψ\overline{K}{}^{*}\kern-1pt(892)^{0}$ decays
A time-integrated angular analysis of the decay $B^0_s \rightarrow J/ψ\overline{K}{}^{*}\kern-1pt(892)^{0}$, with $J/ψ\rightarrow μ^{+} μ^{-}$ and $\overline{K}{}^{*}\kern-1pt(892)^{0} \rightarrow K^{-} π^{+}$, is presented. The analysis employs a sample of proton-proton collision data collected by the LHCb experiment during 2015-2018 at a centre-of-mass energy of $13 \text{TeV}$, corresponding to an integrated luminosity of $6 \text{fb}^{-1}$. A simultaneous maximum-likelihood fit is perf…

"How your old phone could become a ‘tiny data centre’ helping researchers to track marine life"
#Ocean #Evironment #Technology

Old smartphones turned into ‘tiny data centres’ to track marine life
For just €8, researchers are turning old smartphones into devices capable of tracking marine life and buses.

Deterministic and Stochastic Study of the X-ray Emission from the TeV Blazar Mrk~421
Radim P\'anis (Research Centre for Theoretical Physics and Astrophysics, Institute of Physics in Opava, Silesian University in Opava, Czech Republic), Gopal Bhatta (Janusz Gil Institute of Astronomy, University of Zielona G\'ora, Zielona G\'ora, Poland), Tek P. Adhikari (CAS Key Laboratory for Research in Galaxies and Cosmology, Department of Astronomy, University of Science and Technology …

Deterministic and Stochastic Study of the X-ray Emission from the TeV Blazar Mrk~421
We present a comprehensive timing analysis of X-ray data from the {\it XMM-Newton} satellite, examining 50 light curves covering 17 years of observations of the blazar Mrk~421. This work uses classical deterministic and stochastic methods in a novel way, enabling the distinction of temporal scales and offering essential insights through correlations among parameters. Deterministic behaviors are primarily explored through recurrence quantification analysis (RQA), used innovatively by varying the…

Searching for stars ejected from the Galactic Centre in DESI
Sill Verberne, Sergey E. Koposov, Elena Maria Rossi, Zephyr Penoyre
https://arxiv.org/abs/2506.19570

Searching for stars ejected from the Galactic Centre in DESI
Dynamical interactions between stars and the super massive black hole Sgr A* at the Galactic Centre (GC) may eject stars into the Galactic halo. While recent fast ejections by Sgr A* have been identified in the form of hypervelocity stars (hundreds to thousands km/s), it is also expected that the stellar halo contains slower stars, ejected over the last few billion years. In this study, we use the first data release of DESI to search for these slower GC ejecta, which are expected to stand out f…

Efficient dataset construction using active learning and uncertainty-aware neural networks for plasma turbulent transport surrogate models
Aaron Ho (MIT Plasma Science and Fusion Center, Cambridge, USA), Lorenzo Zanisi (UKAEA Culham Centre for Fusion Energy, Abingdon, UK), Bram de Leeuw (Radboud University, Nijmegen, Netherlands), Vincent Galvan (MIT Plasma Science and Fusion Center, Cambridge, USA), Pablo Rodriguez-Fernandez (MIT Plasma Science and Fusion Center, Cambridge, USA), Nath…

Efficient dataset construction using active learning and uncertainty-aware neural networks for plasma turbulent transport surrogate models
This work demonstrates a proof-of-principle for using uncertainty-aware architectures, in combination with active learning techniques and an in-the-loop physics simulation code as a data labeller, to construct efficient datasets for data-driven surrogate model generation. Building off of a previous proof-of-principle successfully demonstrating training set reduction on static pre-labelled datasets, using the ADEPT framework, this strategy was applied again to the plasma turbulent transport prob…

This https://arxiv.org/abs/2411.03399 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepe…

Study of $D_{s1}(2460)^{+}\to D_{s}^{+}π^{+}π^{-}$ in $B\to {\bar{D}}^{(*)}D_{s}^{+}π^{+}π^{-}$ decays
An amplitude analysis of the $D_{s1}(2460)^+\to D_{s}^{+}π^{+}π^{-}$ transition is performed simultaneously in $B^{0}\to D^{-}D_{s}^{+}π^{+}π^{-}$, $B^{+}\to{\bar{D}}^{0} D_{s}^{+}π^{+}π^{-}$, and $B^{0}\to D^{*-}D_{s}^{+}π^{+}π^{-}$ decays. The study is based on a data sample of proton-proton collisions recorded with the LHCb detector at centre-of-mass energies of $\sqrt{s}=7,8,$ and $13\,$TeV, corresponding to a total integrated luminosity of $9\,\rm{fb}^{-1}$. A clear double-peak str…

South Korea's SK Group and AWS will invest ~$5.1B including $4B from AWS to build a 100 MW AI data center in Ulsan by 2029, and plan to expand capacity to 1 GW (Reuters)
https://www.reuters.com/business/retail-co

Insights from a 30-Year international Partnership on Astronomical Archives
David R. Rodriguez, Maria Arevalo, Patrick Dowler, Javier Espinosa, Brian McLean, Chris Willott
https://arxiv.org/abs/2506.11888

Insights from a 30-Year international Partnership on Astronomical Archives
In an era where astronomical data is expanding at an unprecedented rate, the importance of data sharing and accessibility among astronomy archives cannot be overstated. Since the 1990s, an international partnership between the Space Telescope Science Institute (STScI), the European Space Astronomy Centre (ESAC), and the Canadian Astronomy Data Centre (CADC) has been focused on this endeavor, facilitating the exchange of data from the Hubble and James Webb Space Telescopes. We will present how…

VaxPulse: Active Global Vaccine Infodemic Risk Assessment
Gerardo Luis Dimaguila (Epidemiology Informatics, Centre for Health Analytics, Melbourne Children's Campus, Australia, Department of Paediatrics, The University of Melbourne, Australia), Muhammad Javed (Epidemiology Informatics, Centre for Health Analytics, Melbourne Children's Campus, Australia, Global Vaccine Data Network, University of Auckland, New Zealand), Jeremiah Munakabayo (Epidemiology Informatics, Centre for H…

VaxPulse: Active Global Vaccine Infodemic Risk Assessment
Vaccine infodemics, driven by misinformation, disinformation, and inauthentic online behaviours, pose significant threats to global public health. This paper presents our response to this challenge, demonstrating how we developed VaxPulse Vaccine Infodemic Risk Assessment Lifecycle (VIRAL), an AI-powered social listening platform designed to monitor and assess vaccine-related infodemic risks. Leveraging interdisciplinary expertise and international collaborations, VaxPulse VIRAL integrates mach…

GloBIAS: strengthening the foundations of BioImage Analysis
A. A. Corbat (BioImage Informatics Unit, Science for Life Laboratory and Department of Information Technology, Uppsala University, Sweden), C. G. Walther (German BioImaging, Gesellschaft f\"ur Mikroskopie und Bildanalyse e.V., Konstanz, Germany, University of Vienna, Vienna, Austria), L. R. de la Ballina (Centre for Cancer Cell Reprogramming, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Montebe…

GloBIAS: strengthening the foundations of BioImage Analysis
There is a global need for BioImage Analysis (BIA) as advances in life sciences increasingly rely on cutting-edge imaging systems that have dramatically expanded the complexity and dimensionality of biological images. Turning these data into scientific discoveries requires people with effective data management skills and knowledge of state-of-the-art image processing and data analysis, in other words, BioImage Analysts. The Global BioImage Analysts' Society (GloBIAS) aims to enhance the profile…

Euclid: Early Release Observations. A combined strong and weak lensing solution for Abell 2390 beyond its virial radius
J. M. Diego, G. Congedo, R. Gavazzi, T. Schrabback, H. Atek, B. Jain, J. R. Weaver, Y. Kang, W. G. Hartley, G. Mahler, N. Okabe, J. B. Golden-Marx, M. Meneghetti, J. M. Palencia, M. Kluge, R. Laureijs, T. Saifollahi, M. Schirmer, C. Stone, M. Jauzac, D. Scott, B. Altieri, A. Amara, S. Andreon, N. Auricchio, C. Baccigalupi, M. Baldi, S. Bardelli, P. Battaglia, A. Bivia…

Euclid: Early Release Observations. A combined strong and weak lensing solution for Abell 2390 beyond its virial radius
Euclid is presently mapping the distribution of matter in the Universe in detail via the weak lensing (WL) signature of billions of distant galaxies. The WL signal is most prominent around galaxy clusters, and can extend up to distances well beyond their virial radius, thus constraining their total mass. Near the centre of clusters, where contamination by member galaxies is an issue, the WL data can be complemented with strong lensing (SL) data which can diminish the uncertainty due to the mass…

Breakthrough Listen: A Technosignature Search Around 27 Eclipsing Exoplanets Selected from the Transiting Exoplanet Survey Satellite Catalogue
R. Barrett (University of Southern Queensland), C. D. Tremblay (SETI Institute, CSIRO Astronomy and Space Science), B. Addison (University of Southern Queensland Centre for Astrophysics, Swinburne University of Technology Centre for Astrophysics and Supercomputing), D. C. Price (International Centre for Radio Astronomy Research, SKA Observatory …

Breakthrough Listen: A Technosignature Search Around 27 Eclipsing Exoplanets Selected from the Transiting Exoplanet Survey Satellite Catalogue
Here we analyse the archival data for a set of 27 Transiting Exoplanet Survey Satellite (TESS) Targets of Interest (TOIs) in search for artificially generated radio signals, or 'technosignatures', interrupted by occultation. Exoplanetary eclipses are notable events to observe in the search for technosignatures, as they mark the geometrical alignment of the target, its host star, and Earth. During an eclipse event, any signal emanating from the target of interest should cease for the duration of…

> "Sites must demonstrate sufficient access to water to support at least 500MW of AI infrastructure."
The actual amounts are left as an exercise.
It's fair enough that it's difficult to guess how much water would be required for an AI data centre in 2030... but in the context of development applications, a figure representing a base minimum might be expected?

AI Growth Zones: open for applications

Search for the decay $B^0 \rightarrow \phi \phi$
LHCb collaboration, et al.
https://arxiv.org/abs/2507.20945 https://arxiv.org/pdf/2507.20945

Search for the decay $B^0 \rightarrow ϕϕ$
A search for the decay $B^0 \rightarrow ϕϕ$ is made using $pp$ collision data collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of $9$ fb$^{-1}$. No significant signal is observed, and an upper limit on the branching fraction of $1.3~(1.4)\times 10^{-8}$ at $90 ~(95) \%$ confidence level is set. This result supersedes the previous LHCb study and improves the upper limit by a factor of two.

Domestic frontier AI regulation, an IAEA for AI, an NPT for AI, and a US-led Allied Public-Private Partnership for AI: Four institutions for governing and developing frontier AI
Haydn Belfield
https://arxiv.org/abs/2507.06379

Domestic frontier AI regulation, an IAEA for AI, an NPT for AI, and a US-led Allied Public-Private Partnership for AI: Four institutions for governing and developing frontier AI
Compute governance can underpin international institutions for the governance of frontier AI. To demonstrate this I explore four institutions for governing and developing frontier AI. Next steps for compute-indexed domestic frontier AI regulation could include risk assessments and pre-approvals, data centre usage reports, and release gate regulation. Domestic regimes could be harmonized and monitored through an International AI Agency - an International Atomic Energy Agency (IAEA) for AI. This …

"xAI Data Center Emits Plumes of Pollution, New Video Shows"
#AI #ArtificialIntelligence #Techcnology #Climate

xAI data centre emits plumes of pollution, new video shows
A massive data centre at xAI’s controversial site in Memphis, Tennessee is emitting huge plumes of pollution, according to an environmental watchdog group.

“Let them eat bullshit”
– Mark Zuckerberg, probably
#AI #habitatLoss #resourceDepletion #BigTech

Coherent photoproduction of $\rho^0, \omega$ and excited vector mesons in ultraperipheral PbPb collisions
LHCb collaboration, et al.
https://arxiv.org/abs/2506.06250

Coherent photoproduction of $ρ^0, ω$ and excited vector mesons in ultraperipheral PbPb collisions
The invariant-mass distribution for the coherent photoproduction of dipions in ultraperipheral PbPb collisions is measured using data, corresponding to an integrated luminosity of $ 224.6 \pm 9.6\ μ$b$^{-1}$, collected by the LHCb experiment in 2018 at a nucleon-nucleon centre-of-mass energy $\sqrt{s_{\rm NN}}=5.02$ TeV. The dominant contribution is due to the $ρ^0$ meson but a consistent description across the full invariant-mass range requires accounting for the $ω$ meson and introducing t…

Current Galactic Chemical Evolution models fail to explain rising Na-abundances of young thick disc stars
E. K. Owusu (School of Science, University of New South Wales Canberra, Australia Defence Force Academy, Australia, ARC Centre of Excellence for All-Sky Astrophysics in 3 Dimensions, Max-Planck-Institut f\"ur Astronomie, Heidelberg, Germany, Heidelberger Institut f\"ur Theoretische Studien, Heidelberg, Germany), A. J. Ruiter (School of Science, University of New South Wal…

Current Galactic Chemical Evolution models fail to explain rising Na-abundances of young thick disc stars
We recently identified an upturn in [Na/Fe] for the population of Solar-type stars in the Galactic thick disc ($-0.3 < [\mathrm{Fe/H}] < +0.3$ dex) at super-Solar metallicity in GALactic Archaeology with HERMES (GALAH) data. Here, we investigate the cause of this unexplained Na enrichment between ([Fe/H] $\sim 0 - 0.6$ dex) using the OMEGA$+$ galactic chemical evolution code. We investigate the increase of [Na/Fe] with four combinations of nucleosynthetic yields from the literature, with source…

Life Cycle Analysis for Emissions of Scientific Computing Centres
Wim Vanderbauwhede, Mattias Wadenstein
https://arxiv.org/abs/2506.14365 https://

Life Cycle Analysis for Emissions of Scientific Computing Centres
We propose a dedicated model to assist with the life cycle analysis of emissions of scientific computing centres. The model takes into account both the embodied carbon and emissions from use, as well as other factors such as data centre power usage efficiency, data centre expansion, hardware replacement, increase in energy efficiency of next-generation hardware, reduction in carbon intensity of the electricity supply and potential for heat reuse. If differs from existing models in its detailed …

Search for single production of vector-like quarks decaying into $W(\ell\nu)b$ in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
ATLAS Collaboration
https://arxiv.org/abs/2506.15515

Search for single production of vector-like quarks decaying into $W(\ellν)b$ in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
A search for single production of a vector-like quark $Q$, which could be either a singlet $T$, with charge $\tfrac23$, or a $Y$ from a $(T,B,Y)$ triplet, with charge $-\tfrac43$, is performed using data from proton-proton collisions at a centre-of-mass energy of 13 TeV. The data correspond to the full integrated luminosity of 140 fb$^{-1}$ recorded with the ATLAS detector during Run 2 of the Large Hadron Collider. The analysis targets $Q \to Wb$ decays where the $W$ boson decays leptonically. …

Measurement of the $B^0\rightarrow \rho(770)^{0}\gamma$ branching fraction
LHCb collaboration, et al.
https://arxiv.org/abs/2507.14401 https://

Measurement of the $B^0\rightarrow ρ(770)^{0}γ$ branching fraction
The ratio between the branching fractions of the $B^0\rightarrow ρ(770)^{0}γ$ and $B^{0}\rightarrow K^{*}(892)^{0}γ$ decays is measured with proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb${}^{-1}$. The measured value is \begin{equation*} \frac{{\cal B}(B^0\rightarrow ρ(770)^{0}γ)}{{\cal B}(B^0\rightarrow K^{*}(892)^{0}γ)}=0.0189\pm 0.0007\pm 0.0005, \end{equation*} where the fi…

The Peculiar Mini-Halo in the Shapley Supercluster Member Abell 3558
K. S. Trehaeven, T. Venturi, O. Smirnov, G. Di Gennaro, M. Rossetti, S. Giacintucci, S. Bardelli, P. Merluzzi, S. P. Sikhosana, D. Dallacasa, R. Kale, K. Knowles
https://arxiv.org/abs/2507.07549

The Peculiar Mini-Halo in the Shapley Supercluster Member Abell 3558
We present a multi-band study of the diffuse emission in the galaxy cluster Abell 3558, located in the core of the Shapley Supercluster. Using new MeerKAT UHF-Band and uGMRT Band-3 observations, and published MeerKAT L-band and ASKAP 887 MHz data, we perform a detailed analysis of the diffuse emission in the cluster centre. We complement with XMM-Newton X-ray information for a thorough study of the connection between the thermal and non-thermal properties of the cluster. We find that the diffus…

Improved measurement of $\eta / \eta^{\prime}$ mixing in $B^{0}_{(s)} \rightarrow J/\psi \eta^{(\prime)}$ decays
LHCb collaboration, et al.
https://arxiv.org/abs/2507.13914

Improved measurement of $η/ η^{\prime}$ mixing in $B^{0}_{(s)} \rightarrow J/ψη^{(\prime)}$ decays
Branching fraction ratios between the decays $B^{0}_{(s)} \rightarrow J/ψη^{(\prime)}$ are measured using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of $7$, $8$ and $13~\textrm{TeV}$, corresponding to an integrated luminosity of $9~ \textrm{fb}^{-1}$. The measured ratios of these branching fractions are $\frac{BF(B^{0} \rightarrow J/ψη^{\prime})}{BF(B^{0} \rightarrow J/ψη)} = 0.48 \pm 0.06 \pm 0.02 \pm 0.01$ and $\frac{BF(B^{0}_{s} \rightarrow…

Search for the lepton-flavour-violating decays $B^0 \to K^{*0} \tau^\pm e^\mp$
LHCb collaboration, et al.
https://arxiv.org/abs/2506.15347 https://

Search for the lepton-flavour-violating decays $B^0 \to K^{*0} τ^\pm e^\mp$
A first search for the lepton-flavour-violating decays $B^0\to K^{*0}τ^\pm e^\mp$ is presented. The analysis is performed using a sample of proton-proton collision data, collected with the LHCb detector at a centre-of-mass energy of 13 TeV between 2016 and 2018, corresponding to an integrated luminosity of 5.4 fb$^{-1}$. No significant signal is observed, and upper limits on the branching fractions are determined to be $\cal{B}$$(B^0 \to K^{*0}τ^-e^+)< 5.9$ $(7.1)\times 10^{-6}$ and $\cal{B}$…

Study of Higgs boson pair production in the $HH \rightarrow b \overline{b} \gamma \gamma$ final state with 308 fb$^{-1}$ of data collected at $\sqrt{s} = 13$ TeV and 13.6 TeV by the ATLAS experiment
ATLAS Collaboration
https://arxiv.org/abs/2507.03495

Study of Higgs boson pair production in the $HH \rightarrow b \overline{b} γγ$ final state with 308 fb$^{-1}$ of data collected at $\sqrt{s} = 13$ TeV and 13.6 TeV by the ATLAS experiment
A search for Higgs boson pair production in the $b \overline{b} γγ$ final state is performed. The proton-proton collision dataset in this analysis corresponds to an integrated luminosity of 308 fb$^{-1}$, consisting of two samples, 140 fb$^{-1}$ at a centre-of-mass energy of 13 TeV and 168 fb$^{-1}$ at 13.6 TeV, recorded between 2015 and 2024 by the ATLAS detector at the CERN Large Hadron Collider. In addition to a larger dataset, this analysis improves upon the previous search in the same fi…

Observation of $t\bar{t}\gamma\gamma$ production at $\sqrt{s}=$13 TeV with the ATLAS detector
ATLAS Collaboration
https://arxiv.org/abs/2506.05018 https://…

Observation of $t\bar{t}γγ$ production at $\sqrt{s}=$13 TeV with the ATLAS detector
This paper presents the first observation of top-quark pair production in association with two photons ($t\bar{t}γγ$). The measurement is performed in the single-lepton decay channel using proton-proton collision data collected by the ATLAS detector at the Large Hadron Collider. The data correspond to an integrated luminosity of 140 fb$^{-1}$ recorded during Run 2 at a centre-of-mass energy of 13 TeV. The $t\bar{t}γγ$ production cross section, measured in a fiducial phase space based on par…

Measurements and interpretations of $W^{\pm}Z$ production cross-sections in $pp$ collisions at $\sqrt{s} =$ 13 TeV with the ATLAS detector
ATLAS Collaboration
https://arxiv.org/abs/2507.03500

Measurements and interpretations of $W^{\pm}Z$ production cross-sections in $pp$ collisions at $\sqrt{s} =$ 13 TeV with the ATLAS detector
Measurements of integrated and differential cross-sections for $W^{\pm}Z$ production in proton-proton collisions are presented. The data collected by the ATLAS detector at the Large Hadron Collider from 2015 to 2018 at a centre-of-mass energy of $\sqrt{s} =$ 13 TeV are used, corresponding to an integrated luminosity of 140 fb$^{-1}$. The $W^{\pm}Z$ candidate events are reconstructed using leptonic decay modes of the gauge bosons into electrons or muons. The integrated cross-section per lepton f…